Why isn't Claudius afraid of laertes?

Claudius isn't afraid of Laertes because he perceives him as a pawn in his greater political game, believing he can manipulate Laertes's anger towards Hamlet to serve his own ends. He underestimates Laertes's resolve and capability, viewing him merely as a young man seeking revenge rather than a genuine threat. Additionally, Claudius feels secure in his position as king and believes he can control the situation through cunning and deception.